From: Marcus Watts <mwatts@redhat.com>
Date: Tue, 15 Aug 2017 03:56:21 +0000 (-0400)
Subject: radosgw: fix zero sized chunked uploads with s3
X-Git-Tag: v12.2.0~33^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=33673bca96982653674a515933658cb44f8addea;p=ceph.git

radosgw: fix zero sized chunked uploads with s3

s3 allows for zero sized objects, which can be
created using chunked uploads.  It is important to
call "recv_body (and ChunkMeta::create_next()) even
on zero sized objects, so that the proper chunk signature
can be presented at signature verification time.

Fixes: http://tracker.ceph.com/issues/21000

Signed-off-by: Marcus Watts <mwatts@redhat.com>
(cherry picked from commit 4d3d72fd1c5e0e3913ee9f9b7f8ce2bfe6d4b6fa)
---

diff --git a/src/rgw/rgw_rest.cc b/src/rgw/rgw_rest.cc
index f67a076c6222..27cdaf1353e6 100644
--- a/src/rgw/rgw_rest.cc
+++ b/src/rgw/rgw_rest.cc
@@ -1138,7 +1138,7 @@ int RGWPutObj_ObjStore::get_data(bufferlist& bl)
   }
 
   int len = 0;
-  if (cl) {
+  {
     ACCOUNTING_IO(s)->set_account(true);
     bufferptr bp(cl);